Hemmings Find of the Day – 1983 Pontiac Firebird Trans Am Restomod 1983 Pontiac Firebird Trans Am for sale on Hemmings.com. From the seller’s description: GM Performance ZZ383 C.I.D. 450 Hp Engine 4,600 miles; “G-Force” 600 Hp 5 speed transmission 6,100 Mil...